Soldier in the Roman army, and a closet Christian. When a centurian‘s post fell open, he and another soldier applied. Marinus was the first choice, but his rival cited an ancient law that required a centurian to offer sacrifice to the emperor. Marinus confessed his Christianity, and claimed he could not offer the sacrifice. He was given three hours to change his mind, and spent the time in church with the bishop Theotecnus, meditating on a sword and scroll of the gospels. And the end of his three hours he again refused to make the sacrifice, and was executed for his faith.